Automatic embroidering-machine.



R. ZAHN, DECD. A. IIIETzscH. ADMINISTRATOR. AUTOMATIC EMBROIDERINGMACHINE. APPLICATION FILED IuNE I. I9I2.

' ROBERT ZAHN, 01E PLAUEN, GERMANY; ALFRED RIE'IZSCII ADMINISTRATOR 0FSAID noteer zei-In, nisc'nnsnn.

ATOIIATIC EMBROIJDERDIG-MACHIE.

Specification of Letters Patent.

Application filed .I une I", 1912. Serial No. 701,016.

To all 'whom 'z't may concern."

Be it known that I, ROBERT ZAHN, a subject of the German Emperor,residing at Plauen, Kingdom of Saxony, Germany, have invented certain-new and usefulvllm p'ovements in Automatic Embroideringachines, ofwhich the following is a specil `cation.

The great economic value of an automatic Y (jacquard) embroideringmachine lies in that without personal or direct help in a given time andquantitatively more work is produced than with an ordinary embroiderymachine and that qualitatively the work is as perfect as its patternwhose production has required much time and a skilled workman.

Yet 'the eciency of the automatic embroidering machine suers a good'dealon account of the fact that each time one set of embroidery implementsis changed for another, particularly in passing from embroidering toboring, an interruption of the work is occasioned because the operatingheavy'masses of one set must be arrested and those of another setstarted.

This invention has for its object to remove i these drawbacks andconsists in that in lieu of completely arresting the operatingimplements the same are given short idle motions while the main shaft ofthe machine and all cams fixed thereon remain in action.

'Io make my invention more clearthe same is more or lessdiagrammatically il1us trated in the accompan in drawing forming a partof this speci cation Figure 1 be- 1n chine and Fig. 2 a similar view ofsome parts thereof.

With reference to the drawing 1 denotes the main shaft of theembroidering machine on which are fixed the shuttle operating cam 2, theneedle operating cam 3 and the thread tension controllin cam 4. The cam2 operates the bell crank ever 5 one arm of which is formed to a loop51. The cam 3 operates a rod 6 which is connected to looped bell cranklevers 7 and the cam 4 opf erates a' rod 8 which is connected to alooped bell crank levers 9. The boring implements e are indicated by Cand the shuttles by S.

The jacquard mechanism is indicated by a boxl 10 and o erates, in wellknown manner, a rod 11 w 'ch is connected to one arm of a three armedlever 12. Une of the other a diagrammatic view of t e entire ma-A threearms of this leverv 12 by a rod 13 is conncted to a rod 14, which at oneend is pivoted `to the shuttle guide 15 and at its other end slidablyengages the loop 51 of the lever 5. rIhe third arm of the lever 12 by arod 16 is connected to one arm of a bell crank lever 17 the other arm ofwhich by a setof rods 18, 19, 20 and 21 is'connected to rods 22 and 23.The rod 22 is connected at one end to the needle bar 24 and at its otherend it slidably engages the loop 71 of the lever 7 and the rod 23 isconnected at one end to the thread take up lever 25 and at its other endslidably engages the loop 91 of the lever 9.

Thus the jacquard controlled rod 11 has link-motion connections with thevarious Patenten tray ai, raie.'

embroidering implements and enables the other Iimplements, as those forboring, are

rendered temporarily ineective. rlfhus when passing from embroidering toboring, the jacquard mechanism draws the rod 11 downwardly, wherebythrough the medium of the lever 12 and the rod 13, the rod 14 isdisplaced within the loop 51 toward the fulcrum of the lever 5 so thatthe motion of the rod due to the oscillation ofthe lever 5 by therespective cam 2, nand consequently also that ofthe shuttles S will bereduced to a minimum.

Simultaneously the rod 11 through the medium of the levers 12, 17 androds 18, 19, 20, 21 swings the -rods 22, 23 in the loops of the bellcrank levers 7 and 9 toward the fulcrums of the latter therebyshortening the stroke of the needle bars 24 and that of take-up levers25so that their action as well as that of the shuttles during the'boringis ine'ective.

:What I claim and desire to secure by Iaetters Patent is: v

1. In an embroidering machine, embroiderin implements, perforatingimplements, a sing e shaft rotating continuously in one direction wherebthe said implements'are operated, means including said shaft forimparting to the different parts of the embroidering implements an idleor ineffective motion without stopping the rotation of said shaft andmeans including said shaft for imparting an idle or ineective motion tosaid perforating plements without"v stopping the rotation of said shaft.

multaneously rendering ineffectivethe said i stitching mechanismneedles, shuttles and take-ups,

simultaneously rendering ineffective the different parts .of thestitching mechanism without stopping the rotationof the shaft. Inajacquard embroidering machine, a stitching lmechanism includingstitching needles, shuttles and take-ups, a jacquard y apparatus, asingle shaft adapted to rotate contlnuously in one direction and havinga series of camsfor actuating the said several parts of the -stitchingmechanism and a single means actuated from rthe said jacquard apparatusfor simultaneously rendering ineffective the said several parts ofthestitching mechanism without stoppingthe rotation of said shaft.

4. In a jacquard-embroidering machine, a including stitching a yjacquardapparatus, a single shaft adapted tol rotate continuously .in onedirection, a series of cams thereon for actuating the said several partsof the mechanism and a single means actuated from the said jacquardapparatus for siseveral parts of the stitching mechanism withoutstoppingthe rotation of said cams.

5. In an embroidering machine, driving` means, a stitching mechanismincluding needles, shuttles I'and thread take-ups, ad-

each of said differjustable means between ent 'implements of thestitching mechanism and said driving means and a single means forsimultaneously adjusting all said aforenamed means. I

6. In anembroideringmachine, driving means, a 'stitching mechanismincluding needles, shuttles and thread take-ups, link motion connectionsbetween said different implements of the stitching ,mechanism and saiddriving means and a single means for simultaneously adjusting all saidlink motion connections.

7. In an embroidering machine,`a stitching mechanism including needles,shuttles and thread ftake-ups, a single continuously rotating shaft,adjustable means between each of said implements of said stitchingmechanism and saidl driving shaft and a single means for 'simultaneouslyadjusting all said aforesaid means without stopping the rotation of saidshaft. v

8. In a jacquard embroidering machine, a Lstitching mec anism, includingneedles, shuttles and thread take-ups, ay single continuously rotatingshaft, link motion connections between said shaft and each of theimplements of said stitching mechanism, and a single jacquard controlledmeans for simultaneously adjusting all said link motion nections. l

9. In a jacquard embroidering machine, a

stitching mechanism, including needles,

shuttles and threadtake-ups, a single contin- ROBERT ZAHN. Witnesses A.CURTIS ROTH, ROBERT H. Num.

and each of the im-` plements ofv said stitchin my signature'

